package cn.lizemin.observer.version1.entity;

/**
 * @author lzm
 * @version 1.0
 * @description: TODO
 * @date 2022/4/21 11:57
 */
public abstract class Buyer {
    /**
     * 所有买家都有姓名
     */
    /**买家姓名*/
    protected String name ;

    protected abstract void buy(String product);

}
